Singh, P. (1999). The Boston Consulting Group (BCG) matrix approach in positioning the extrusion division of the Aluminium Company of Malaysia Berhad (ALCOM) in the local Aluminium industry. International Islamic University Malaysia.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Singh, Paramjit. The Boston Consulting Group (BCG) Matrix Approach in Positioning the Extrusion Division of the Aluminium Company of Malaysia Berhad (ALCOM) in the Local Aluminium Industry. Jalan Gombak: International Islamic University Malaysia, 1999.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Singh, Paramjit. The Boston Consulting Group (BCG) Matrix Approach in Positioning the Extrusion Division of the Aluminium Company of Malaysia Berhad (ALCOM) in the Local Aluminium Industry. International Islamic University Malaysia, 1999.